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(No Model.) 2 Sheets-Sheet 1.

A. B. SHIPPEE.

MACHINE FOR MARKING CIRCULAR ARTICLES] No. 496,489. Patented May 2, 1893.

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(No Model.) 2 Sheets'-Shet 2. A. B. SHIPPEE.

I MACHINE FOB MARKING bIRGULAR ARTICLES.

No.4 96,489. I Patented Ma 2', 1s93.

UNITED STATES PATENT OFFICE.

AARON B. SHIPPEE, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO ALBERT W. CHAPMAN,'OF SAME PLACE.

, MACHINE FOR MARKING CIRCULAR ARTICLES.

SPECIFICATION forming part Of Letters Patent No. 496,489,dated May 2, 1893. Application filed February 6 1892. Serial No. 420,603- (No model.) I

To aZZ whom it may concern.-

Be it known that I, AARON B. SHIPPEE, of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Machines for Marking OircularArticles; andI do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form .rotary die for this purpose, which is one of the most costly forms of dies in use. It is illustrated in the accompanying drawings.

Figure 1 is afront elevation of the marking machine, the handles of the levers being omitted. Fig. 2 shows an elevation of the side of the machine to the right in Fig. 1. Fig. 3 is a vertical section from front to back, on line 0c 00, Fig. 1. Fig. 4 is an elevation of the side to the left in Fig. 1. Fig.5 is a top view of the vertical die block, with its slides and means for moving it.

The machine when ready for use consists of a standard A, having a flange at its base by which it can be secured to a table or bench by means of screw-bolts. On the upper front part of this standard, are two slides a, a, which form a way between them for a sliding block d, which is held therein in the usual way with V-shaped sides and set screws e, e, to take up the play and cause the block to slide closely in its place. This block is moved up and down by means of a lever f, pivoted at one end to the standard A at h, and connected by the rod 17, to the lever g, which is held at its inner end by a stud '13, fast in the standard back of the block d, and which projects through an opening in that block. This lever 9, moves the block by a stud j, fast in the block, and passing through a hole in the lever g. (See Fig. 1.) A hole is made in the lower end of the block d, to hold a vertical cylindri cal die 10, which is held in place by means of a set screw 25, and is adjusted vertically by means of a screw 4, passing from the opening in the block, down to the upper end of the die 10. Another block 8, is arranged in like manner to slide on a horizontal way between the sides y, attached to the base of the standard A. The block .9, is moved in its way by means of a rod m, which extends from the back end of the block through the standard A, and has a head on its back end to which a rod 0, is pivoted, that connects at its front end to the end of a knee lever 01, which is pivoted to the standard A, at Z. A handle 0, on the other end of the knee lever 0;, serves to move the parts by, to throw the block back and forward in its slides. The block 8, has a hole made in it to receive another vertical die a, which is held in place by a set screw d, in the side of the block, (see Fig. 2) and a screw e, is placed vertically under the die a and a countersunk recess is made in the under side of the block to receive the head of this screw, which adjusts the die a, vertically, by screwing up or down in the'block. A gage plate f, is attached to the block 8, on one side by a screw 9', passing through a slot in the gage and screwing into the block 8. This gage extends upacross the face of the block and can be set forward or back at any desired point of the divided scale h. (See Fig. 4.)

The mode 'of operation is as follows: Starting with both handles 0, o, raised, in which position the die block d, is raised and the lower block 8, is clear forward, as shown in Fig. 3,

the article n, to be marked, is laid across the block .9, against the gage plate f, just back of the die a, and the block d, with the die 10, is brought down on the article a, by bringing the handle 0', down. Then the handle 0 is moved down, carrying back the block 8, by means of connecting rod 0, and bar m, rolling the article in between die blocks 8, d, under the die 19, and over the die a, and thus get the impression of one die on one side, and of the other on the opposite side. The marking figures in the ends of the dies, are made to project by means of their respective adj usting screws, above the faces of the blocks,just

the distance it is desired to have the marks penetrate into the article n, and no amount of pressure on the handle 0, will make them go any deeper, because of the contact of the faces of the blocks, so that the marking is made uniform, not only on different parts of the same article; but also on articles successively marked.

When it is desired to mark only on one side of an article, either one of the dies can be moved below the face of its block, by turning back its adjusting screw and easing its set screw, so that it will make no impression, though the face of the die remaining above the face of its block, will mark as before.

This way of marking, gives very accurate, uniform results as to position of the marks and depth of impression, and is very easily performed, as the friction of turning the article is reduced to a rolling one, and only a small part of an impression is made at any one time.

Having thus'described my improvements, I claim as my invention- 1. In a machine for marking circular or cylindrical articles, a die-block carrying a stationary die, and means for movingit vertically a lower block adapted to reciprocate horizontally under said vertically movable die-block and to give a rolling motion to the article being marked and means for moving the lower die-block substantially as specified.

2. In a machine for marking circular or cylindrical articles, the combination of a vertical die block having a vertical adjusting screw back of the die, with a horizontal die block having an adjusting screw placed in said block vertically under the die, said dies and means for moving said horizontal die block forward and back under said vertical die block, substantially as set forth.

3. In a machine for marking circular or cylindrical articles, the combination of a block for holding a die, and means for moving the block vertically, with a die block sliding horizontally under said vertically moving block, dies fitted in said blocks, a gage plate attached to said horizontally moving block, and means for moving the latter block horizontally, substantially as set forth.

AARON B. Sl-IIPPEE.

Witnesses:

A. W. CHAPMAN, BENJ. ARNOLD. 

